Transcript ACI Seminar on Formwork at Chennai Dtd 23rd and 24th July …

ACI
Seminar on Formwork
at Chennai
Dtd 23rd and 24th July 2009
Seminar Report
Prepared by
V. G. Abhyankar
NATIONAL SEMINAR ON "FORMWORK"
23RD & 24TH JULY, 2009
AT CHENNAI
The program schedule was as shown below
DAY-1
PROGRAMME
Thursday, 23rd July 2009
9.15
10.00
Registration and Kit distribution
SESSION - I
10.00
10.30
Inauguaration
10.30
11.30
Key Note Address
11.30
12.00
Tea Break
Dr. A. Ramakrishna
SESSION - II
12.00
12.45
Technical Paper Presentation
(Formwork for SCC Application)
Dr. Sivarama Sarma
12.45
13.15
Technical Paper Presentation
(Causes of Centering Failures)
Dr. C.V. Kand
13.15
14.00
Product Presentation
L&T
14.00
15.00
Lunch
SESSION - III
15.00
15.45
Product Presentation
DOKA
15.45
16.30
Product Presentation
PERI
16.30
16.45
Tea Break
SESSION - IV
16.45
17.30
Product Presentation
GEOPLAST (SPARKONIX)
17.30
18.00
Technical Paper Presentation
(Case study on modular Aluminium Formwork)
Mr. Pradeep Ghumare &
Mr. Purushotham
Friday, 24th July 2009
SESSION - IV
16.45
17.30
Product Presentation
GEOPLAST (SPARKONIX)
DAY-217.30
18.00
Technical Paper Presentation
(Case study on modular Aluminium Formwork)
Mr. Pradeep Ghumare &
Mr. Purushotham
Friday, 24th July 2009
SESSION - V
10.00
10.30
Reliability Study of Formwork Sytems
Dr. Devdas Menon &
Mr. T Prakash, IIT Chennai
10.30
11.15
Product Presentation
NOE
11.15
12.00
Product Presentation
MEVA
12.00
12.30
Tea Break
SESSION - VI
12.30
13.00
Technical Paper Presentation
(Staging and shuttering gantry in structural
steel for PSC Box Girder Bridge)
Mr. A B Karnik
13.00
13.30
Technical Paper Presentation
(Formwork Applicable Codes, Safety and Failure)
Mr. K.V. Srikanth
13.30
14.00
Technical Paper Presentation
(Role of Formwork in RCC - A Case Study)
Mr. Laxmikanta Tripathy
14.00
15.00
Lunch Break
SESSION - VII
15.00
15.30
Technical Paper Presentation
(In Built Ferrocement Structural Formwork)
Mr. J.A. Desai
Dr. S A Reddi
15.30
16.00
Technical Paper Presentation : (Formwork)
16.00
16.30
Tea Break
Seminar Venue – L&T ECC – Convention Center
Key-Note Address by Dr. A. Ramakrishna
400+ delegates Inclusive of 125 students
Key Note address :• Cost of formwork / staging reach upto 40% of concrete cost.
• The use of conventional vs. System formwork has to be studied properly in
this context to get maximum speed, quality, safety and economy.
• The use of system formwork in various specialty jobs viz. Domes, shells,
tunnels, cooling towers has now proved that the overall satisfaction can be
achieved
• The formwork design of Bahai - lotus temple, Delhi, was extremely difficult.
It consumed about 5 and half years time, but the end results were extremely
satisfactory.
• The slipform method and Push-Launching operation used for construction of
Konkan Railway’s highest bridge could complete the project on time and
expected quality and budjet.
• Use of System formwork shall be made as a ‘RULE’
• Preplanning is extremely important to get the ‘EXCELLENT’results.
• A few components which are subjected to rusting need to Galvanized for
long life.
• The options like – Purchase, Hire, by-back etc are available with the system
formwork manufacturers.
Presentation by MEVA Formwork System – Mr. Mark Rose (Austria)
Aspects that affect the Formwork – ppt by Mr. Mark Rose (@ Meva)
Innovative Bridge Launching System discussed by Mr. A. B. Karnik
during his presentation on Enabling works
Key points discussed during the Session are as listed below
• Use of Timber from cold countries (Scandinavian) countries is advisable as
compared to the timber from tropical countries.
• The participation of students in such engineering activities shall encouraged
and shall be appreciated.
• Dr. Shivaram Sharma (Head – R & D – L&T) presented his paper on
Formwork for Self compacting concrete which received overwhelming
response.
• The use of VMA (viscosity modifying agents) in SCC was discussed in
detail
• The latest developments in the filed of SCC (VMA, Rheometer, effect of the
formwork etc) were discussed and debated.
• The Q-&-A session followed by each session was also very informative.
• The EFNAARC guidelines, 2005, flow test, V-Funnel test etc. were also
disused.
• The speech by Mr. C. V. Kand on the failure case studies was liked by every
one. Mr. Kand explained the failure of formwork / staging and various
construction practices. Mr. Kand also emphasized on the prayer to be
oofered after construction of any structure for the goodwill of the people.
Key points discussed during the Session are as listed below
• The speech by Mr. C. V. Kand on the failure case studies was liked by every
one. Mr. Kand explained the failure of formwork / staging and various
construction practices. Mr. Kand also emphasized on the prayer to be offered
after construction of any structure for the goodwill of the people.
•Staging placed on
back filled soil
shall be
discouraged.
•In one case the
formwork jammed
in between the pier
and the bearing and
the collapse
happened.
Key points discussed during the Session are as listed below
• Dr. Menon (IIT-Chennai) and his student Mr. Prakash, presented their paper
on Reliability analysis for the Formwork, using Monte-Carlo technique. The
technique appears to be bit complex but by the use of tools viz. tables,
graphs, software it should give more economy in future.
• Mr. V. V. Gadgil (the originator of the Idea of this seminar) addressed the
audience on second day. Explained the importance of the formwork / staging
in Mega projects.
• India has shown 9% GDP growth in
the recent days of global slow down,
hence its very encouraging for the
Industry and investors too.
• Mr. Shrinath (HOD – Formwork
division of L&T) discussed various
safety aspects about the formwork and
staging and the research work done at
their own testing laboratory.
• The draft code IRC-87 (under wide
circulation) was noted.
Bridge failure in Cuttak, 15.07.2009
Building of Unusual Shape – in L&T campus
Building Standing on Single column within the premises of L&T
Parking Shed
Over whelming response received to the event
Chennai - Airport
THANKS